C25N1TM250 | NSX250N 25kA AC 1P 250A TMD – Schneider Electric

Name: C25N1TM250 | NSX250N 25kA AC 1P 250A TMD - Schneider Electric - myelectric.in
Brand: Schneider Electric
SKU: C25N1TM250
Price: 165.25 USD
Availability: BackOrder

SKU: C25N1TM250

Original price was: $344.28.Current price is: $165.25. Excl. GST

Dispatch By : 9 Weeks

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📋 Technical Specifications

Parameter	Value
Brand	Schneider Electric
Part Number / SKU	C25N1TM250
Category	MCCB
Current Rating	250 A
Frame Size	250 A
Poles	1 Pole
Breaking Capacity	25 kA
Standard	IEC 60947-2 / IS 13947-2
Certifications	BIS certified, CE marked, RoHS compliant

⚡ Key Features

250 A frame rating — handles the full rated current continuously; designed for feeder and sub-distribution protection where fault levels exceed MCB capability.
Performance level N — breaking capacity 50 kA (normal high breaking, for industrial main distribution boards).
TMD (Thermal-Magnetic) trip unit — adjustable overload setting (Ir) from 0.7–1× In with fixed instantaneous magnetic trip; simple and reliable for standard feeder applications.
1 Pole — protects the connected feeder circuit.
CompacT NSX form factor — 70mm wide per pole; designed for high-density LV switchboards with up to 3 units per standard 250mm busbar bay.
Rotary handle with padlocking points — LOTO compliant; handle locks in OFF position with up to 3 padlocks, preventing accidental energisation during maintenance.
Manufactured to IEC 60947-2 / IS 13947-2 — complies with the applicable Indian BIS and IEC international standards for this product category.
BIS certified, CE marked, RoHS compliant — meets Indian regulatory requirements for use in government, commercial, and industrial electrical installations.
Genuine authorised Schneider Electric product — sourced directly from the official distribution network with full manufacturer traceability and warranty.
GST invoice provided for India orders — valid for corporate procurement, government project orders, and public tender supply via myelectric.in.

❓ Frequently Asked Questions

Q: What load can the C25N1TM250 protect at its rated 250 A?

A: The C25N1TM250 is rated to carry and protect circuits up to 250 A continuously. For motor loads, ensure the full-load current (FLC) of the motor does not exceed this rating. For resistive loads (heaters, lighting), the 250 A rating is used directly. Derate by 20% for ambient temperatures above 40°C.

Q: What does the 25 kA breaking capacity on the C25N1TM250 mean in practice?

A: Breaking capacity (25 kA) is the maximum prospective short-circuit current the C25N1TM250 can safely interrupt without damage. Before installing, verify that the prospective fault level at the installation point does not exceed 25 kA — this is checked using a fault level calculation or from the upstream transformer impedance data. Installing a breaker with insufficient breaking capacity is a serious safety violation.

Q: Is the C25N1TM250 suitable for use as a motor branch circuit protector (Type E coordination)?

A: MCCBs used for motor branch circuit protection must be coordinated with the downstream overload relay for Type 2 coordination (no damage to contactor or relay on short-circuit). Verify the Schneider Electric coordination table for the specific contactor-overload-MCCB combination to confirm Type 1 or Type 2 coordination is achieved.

Q: Can the C25N1TM250 be motorised for remote switching and automation?

A: Yes. Schneider Electric MCCBs in this series support rotary handle adaptation and motorised operating mechanisms as accessories, enabling remote ON/OFF switching via PLC, SCADA, or BMS. Motorised MCCBs are used for automatic load management and remote trip in automated distribution systems.

Q: What trip unit type does the C25N1TM250 use — thermal-magnetic or electronic?

A: The C25N1TM250 uses a thermal-magnetic TMD trip unit — thermal bimetal for overload protection and electromagnetic mechanism for short-circuit. Compact, reliable, and maintenance-free for standard applications.